Degrii
Degrii Zima Lite
- Autonomy
- IIIConditional
- Score
- Not scored
- Readiness
- Not assessed
- Price
- $699list
ComparisonDegrii Zima Lite and Dreame Z1 Pro
Dreame
Dreame Z1 Pro
- Autonomy
- IIIConditional
- Score
- 59/100Capable
- Readiness
- Ready Now
- Price
- $999.99list
Up to three
Autonomy Ladder
- IManual
- IIAssisted
- IIIConditional
- IVEnvironmental
- VGeneralized
All robot pool cleaners. Every figure below is placed against the whole class, so a gap can be read against how much the class itself varies.
Where each one suits you.
The conditions each robot was assessed against, side by side. Rows marked in gold are where these machines genuinely differ.
| Condition | Degrii Zima Lite | Dreame Z1 Pro |
|---|---|---|
| Pool type | ||
| In-groundthey differ | DependsMaximum obstacle clearance is 3.9 in; in-ground drains, ladders or fittings taller than that can stop it. | GoodManufacturer rates coverage up to 2,160 sq ft with no documented pool-type restriction; matches typical in-ground layouts. |
| Above-ground | GoodNo above-ground-specific validation was found; the same 3.9 in obstacle-clearance limit that concerns in-ground drains applies here too. | GoodManufacturer documents above-ground compatibility within the same 2,160 sq ft and 5,000 ppm salinity rating as in-ground pools. |
| Mixed setup | GoodDual-radar 3D path planning for floor, wall and waterline coverage is not restricted to either installation type in the specs. | GoodCoverage and salinity ratings apply identically across pool types, so a mixed setup fits the same documented envelope. |
| Pool size | ||
| Small (< 400 sqft) | GoodEven the more conservative 1,614 sq ft manufacturer figure is well beyond what a small pool needs to clean each cycle. | GoodManufacturer's 2,160 sq ft rating comfortably covers pools this size, even with the shorter 80-minute full-cycle runtime. |
| Medium (400 – 800)they differ | GoodA medium pool sits safely under both the 1,614 sq ft EU figure and the 3,800 sq ft US figure Degrii publishes. | DependsStill under the 2,160 sq ft rated area, but the full floor-wall-waterline cycle runs only about 80 minutes. |
| Large (> 800) | DependsDegrii's own EU and US listings disagree on maximum coverage (1,614 vs 3,800 sq ft); confirm against the larger pool before buying. | DependsManufacturer caps rated area at 2,160 sq ft; larger pools may exceed that, and full-cycle runtime is only 80 minutes. |
| Debris load | ||
| Fine (sand / silt) | GoodBoth filter baskets are rated at 180 microns, with no finer mesh option documented for capturing very fine silt. | GoodThe single 180-micron filter is coarser than fine-filtration competitors; sand or silt may pass through uncaught. |
| Leaves / large debris | GoodDual 180-micron filters with 6.5 L combined capacity are sized for leaf and larger debris loads. | GoodA 180-micron filter mesh readily captures larger leaf debris, which sits well above that particle-size threshold. |
| Algae / heavy fouling | DependsNo independent test of cleaning performance against algae was located; available coverage largely restates manufacturer specifications. | DependsIndependent review found inconsistent mapping and debris left near steps even post-firmware; heavy fouling adds coverage risk. |
| Coverage you want | ||
| Floor onlythey differ | GoodFloor mode is one of five selectable modes, running independently of the wall and waterline passes. | DependsFloor-only mode gets a generous 210-minute runtime, but independent review still found early-run navigation stalls of about ten minutes. |
| Floor + wallsthey differ | GoodA dedicated Wall mode cleans walls separately from Floor mode, among the five selectable cleaning modes. | DependsAdding walls drops full-cycle runtime to about 80 minutes; independent review found mapping inconsistent between runs before firmware fixes. |
| Floor + walls + waterlinethey differ | GoodOverall mode covers floor, walls and waterline together in one cycle, driven by the dual-radar 3D path planning. | DependsFull coverage reached roughly 90 percent post-firmware in independent testing, with debris still documented near steps on best runs. |
A robot being poor for a condition is a fact about fit, not a fault. “Depends” means the record names a limit worth reading, not that the answer is unknown.
How far apart is a long way?
A number only means something next to the spread it sits in. Each track is the real range across every classified robot in the class, with the median marked.
Price69 with a published figure
$699$999.99
- Degrii Zima Lite$699
- Dreame Z1 Pro$999.99
$299median $1,249$4,250
Runtime37 with a published figure
180 min180 min
- Degrii Zima Lite180 min
- Dreame Z1 Pro180 min
90 minmedian 180 min1,800 min
Not compared, because fewer than two of these robots carry a published figure: Charge time, Noise, Weight, Height.
What the numbers leave out.
Written on each record, and the only thing here every robot on the site carries.
The trade-off
What each design gives up to be good at what it is good at.
Degrii Zima Lite
Dual-ultrasonic-radar 3D path planning across floor, walls and waterline is a real capability by manufacturer design, but Degrii’s own regional listings disagree on how large a pool that planning actually covers, and this research could not reconcile the two figures.
Auto-parking at the nearest wall reduces how far a robot has to be fished from open water, but it still requires manual lifting rather than a full self-exit, so the retrieval task is reduced, not eliminated.
Dreame Z1 Pro
The robot addresses all three core pool surfaces (floor, walls, waterline) in one cycle, but an independent review found first-run cleaning fell well short of that goal and only reached roughly 90 percent effectiveness after a firmware update.
Auto-parking at the waterline reduces the retrieval task compared to a fully submerged robot, but the same review found the five-minute window before it sinks back adds a different kind of attention requirement: promptness rather than physical retrieval.
Who each one is wrong for
Stated by the record itself. A robot being wrong for a household is a fact about fit, not a fault.
Degrii Zima Lite
- Buyers who need a single, confirmed maximum-coverage figure before purchase
- Degrii's own EU and US listings state different maximum pool sizes for the same product, and this research could not resolve which applies.
- Pools with tall drains, ledges or fittings near 4 in or taller
- The manufacturer's documented maximum obstacle-clearance height is 3.9 in.
- Buyers who require independently verified cleaning performance before purchase
- No independent, non-manufacturer test of the Zima Lite was located during this research.
Dreame Z1 Pro
- Buyers wanting a mature, multi-generation product line
- The Z1 Pro is Dreame's first robotic pool cleaner, with no prior generation's field record to draw on.
- Owners who cannot check the app promptly after a cycle
- An independent review documented the unit sinking back into the water roughly five minutes after parking at the waterline if it is not retrieved.
- Saltwater pools above 5,000 ppm
- The manufacturer's documented saltwater rating tops out at 5,000 ppm.
What stays your job
The upkeep ownership hands back to you, whatever the autonomy level says.
Degrii Zima Lite
- After every use: Retrieve the robot from the wall where it auto-parks (it stays in the water otherwise), empty the dual 180-micron filter baskets, and rinse the mesh with a hose.
- After every use: Recharge the 9,300mAh battery between runs; a full charge covers up to 180 minutes of cleaning.
- Weekly: Inspect the scrubbing brushes for wear and clear any wrapped hair or fibers.
- Monthly: Wipe down the hull, check the 6.5 L basket mesh for tears, and confirm firmware is current in the Degrii app.
- Seasonally: Store the robot indoors over the closed season and do not leave the lithium battery fully discharged in storage.
- As needed: Replace the scrubbing brushes and filter cartridges as they wear. Degrii’s warranty treats both as one-year consumables but publishes no replacement interval or part pricing in the material reviewed.
Dreame Z1 Pro
- After every use: Retrieve within the roughly five-minute window after the robot climbs to the waterline; it sinks back to the bottom if not lifted out, so watch for the app notification (a retrieval hook is included for misses).
- After every use: Empty the 180-micron filter, rinse it with a hose, and recharge the battery between runs.
- Weekly: Inspect the filter mesh for tears and clear any debris lodged in the intake.
- Monthly: Check the app for firmware updates; a firmware update materially changed cleaning effectiveness in the one independent review available.
- Seasonally: Store the unit indoors over the closed season and do not leave the lithium battery fully discharged in storage.
- As needed: Replace the filter when the mesh wears through; no replacement filter pricing was found in sources reviewed.
How much each of these is standing on.
Classifications rest on different depths of evidence. A pre-release assessment and a verified one are not the same kind of claim.
| Robot | Evidence status | Sources reviewed | Last assessed |
|---|---|---|---|
| Degrii Zima Lite | Pending | 5 | Aug 2026 |
| Dreame Z1 Pro | Provisional | 9 | Sep 2026 |
Evidence status counts the sources behind a classification, not their kind. A high count can be maker documentation and price coverage, so read it as how much was reviewed rather than as independent testing. How we weigh evidence.
Keep going.
The full recordDegrii Zima LiteSpecifications, evidence, the Fit Check in full, and every tracked change.
The full recordDreame Z1 ProSpecifications, evidence, the Fit Check in full, and every tracked change.
Written comparisonRobot pool cleaners: what does $500 more actually buy?We have examined this pairing in full, with a stated finding.Robovations classifies robots; it does not rank them. Nothing on this page is a recommendation, and no manufacturer influences a classification or its placement here.
Add a robot
Comparing across classes is allowed — the page will switch to per-class positioning and tell you it has.